Question

ex 15 pag 52
Aflati axa de simetrie a graficului si extremele functiei f:R---->R
a) f(x)=5$x^{2}$+3
b) f(x)=$x^{2}$-4
c)f(x)=-3(x+2)$^{2}$\
 

Answer 1

c) f(x)=-3$(x+2)^{2}$   x=-2
a) x=0
b) x=0